My girlfriend has a 1998 Ford Escort. The transmission will not shift automatically and it will only shift from low to drive. Will not go into over drive. When I read the codes. There were five codes. 1. Cam Position sensor malfunction. 2. Speed Sensor Malfunction 3. Shift Solenoid A malfunction, 4. Shift Solenoid B malfunction, 5. Transmission Temp High Input. I replaced both cam and speed sensors. Also when I checked the transmission fluid level, the level was about 3 to 4 inches up from the tip of the dip stick. Not sure where its supposed to be because there is no level mark. I cleared the codes and now only get the solenoid and temp codes and the transmission still dont shift properly. What else causes these codes and what else can I do to fix the problem.
Hello, I'm Chris, a current Ford Lincoln Mercury employee.
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I need to know the actual code #'s to help you solve this?
P0500- Speed Sensor
P0713- Trans Fluid Temp Sensor Circuit High Input
P0340- Cam Censor
P0750- Shift Solnoid A
P0755 Shift Solenoid B
Does the speedometer work correct?
The cam and speed sensor issues have been corrected, correct?
Can you explain any odd shifting you have noticed from the trans while driving?
Was the trans fluid a tinted color other than bright red, did it have an odor?
You have a F4E-III trans which has 4 forward gears. The codes you have mean this
0713 means the TFT sensor thinks the trans is at negative 40 degress which will greatly alter shift feel and engagement. You need to start by replaceing this sensor which is integral to the transmission harness attached to hte valve body.
0750 and 0755 are shift solenoid circuit failures. The solenoids are only sold as part of the valve body. So your looking at needing a new internal wire harness and valve body without diagnosing with ford equipment and teardown to view the trans for internal concerns.
One more question about this if you will. Can the 0713 cause the other codes
Not directly. The TFT code is a code meaning an open circuit so this means it is a fualty sensor or a wire harness issue. The harness does howeber feed all the solenoids and the TFT sensor.